<template>
      <div class="tab-bar-item" @click="itemClick">
          <div v-if="!isActive"><slot name="item-icon"></slot></div>
          <div v-else><slot name="item-icon-active"></slot></div>
          <div :style="activeStyle"><slot name="item-text"></slot></div>
      </div>
</template>

<script> 
export default {
    props: {
        path: String,
        activeColor: {
            type: String,
            default: 'rgb(216, 30, 6)'
        }
    },
    data() {
        return {
            // isActive: true
        }
    },
    computed: {
        isActive() {
            return this.$route.path.indexOf(this.path) !== -1
        },
        activeStyle() {
            return this.isActive ? {color: this.activeColor} : {}
        }
    },
    // 点击item切换到对应的路由
    methods: {
        itemClick() {
           this.$router.push(this.path) 
        }
    }
}
</script>

<style>
    #tab-bar {
    display: flex;
    background-color: white;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    box-shadow: 0 -1px 1px rgba(100, 100, 100, 0.1);
  }
  .tab-bar-item {
    flex: 1;
    text-align: center;
    height: 49px;
    font-size: 14px;
    /* line-height: 49px; */
  }
  .tab-bar-item img {
      width: 24px;
      height: 24px;
      margin-top: 3px;
      vertical-align: middle;
      margin-bottom: 2px;
  }
</style>